From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from extorris.mess.org (extorris.mess.org [92.243.27.206]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4FD9E36B937; Tue, 15 Sep 2026 08:33:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=92.243.27.206 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789461185; cv=none; b=HrkXOqoKug1CWzD3KSycWAhVaHtu8cR7rB8c3fqFzIuxQKovN+3/PRjVtT+9fxP4sTmEjfJauNkwt9LwSijnjAR9NffyDesAKc8SC8X885NpjpnGNLTTF2KGXSzWZiTidHRxAg0VxKDTNvcRmxhRz3EvuG/Ns2jL2upZzhVaq5o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789461185; c=relaxed/simple; bh=VtAhDb6NREb44ppj0Ga81SnhKAdH0IigntJyB/N3QVs=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=A21GWyU8aitwVKXk0qYZFi0o3z/gTwrY3MyHmMf9RjbiT7fztW7bDnXGr95u8MaOiOUYTza4ZncXNhJrLAAJQSpzGwXmNx2FbuemND90AxJnidiCtHr38r80wHR+nOXLWx8aDPUNKZiUzvfGEUbPIM0smgJnPuRWfwneOvJ0rEw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=mess.org; spf=pass smtp.mailfrom=mess.org; dkim=pass (2048-bit key) header.d=mess.org header.i=@mess.org header.b=ofNRTHw9; dkim=pass (2048-bit key) header.d=mess.org header.i=@mess.org header.b=FZ+CD7nF; arc=none smtp.client-ip=92.243.27.206 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=mess.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mess.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=mess.org header.i=@mess.org header.b="ofNRTHw9"; dkim=pass (2048-bit key) header.d=mess.org header.i=@mess.org header.b="FZ+CD7nF" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=mess.org; s=2020; t=1789461175; bh=VtAhDb6NREb44ppj0Ga81SnhKAdH0IigntJyB/N3QVs=; h=From:To:Cc:Subject:Date:From; b=ofNRTHw9ybD0+AwUWzUAz+jcwPWu1H24csCCQnZPifEsvVLcotT7orYVyHrJOj5zp wc/85y3cdgr0KJsP9ciYfwkbBaHenXssf92MJTY5jf7fT3GtBH1Ds5wgii3K/zIWWL Y16KENR89rRprsr8hLsZdN+pYqbaRXQYGD9ukJAxjLKUw0IAVebfKUDuvhKNB4nO// x+I8kw7JO22QWn+HvPG3YJiAbndWdgb7PKopT9BefiXCplaw0ud3/YFqrMXGi3CmKK p+oK0jZAGsqPbaMmwlspunJROYKmKHwVSSfOcVOFfyhxW6y8M+e18jGD9htEFq/o4u Xg6UxUeB++CgQ== Received: by extorris.mess.org (Postfix, from userid 1004) id 051DC40B86; Tue, 15 Sep 2026 09:32:55 +0100 (BST) X-Spam-Level: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=mess.org; s=2020; t=1789461174; bh=VtAhDb6NREb44ppj0Ga81SnhKAdH0IigntJyB/N3QVs=; h=From:To:Cc:Subject:Date:From; b=FZ+CD7nFzCgzRD0L/5Zq37JiuzDofJJd7+UkXOJS55gyy7HCT6KgEvdn+Qm+YDSz8 S3BJjdWVSrAZFL298MItGVSGc4brYha8fXLspnYqhAqNKvuaipLfUazyWqMv54mr1u XA9jbhFKMgp/FR611Pe9n9G8T1YoL9bzJPnuL/KgEjlQcBXj51EIgEe5YrfjZxc8Zc ZtRQ4AgXjeCwMy1tLcIvq3Lq1MVUtLsPVgeIQs7oS3iy+xFamBLcZ90+cAVkShz1Fi LGtsd5MsCdZGdKo3fzJw0K21a3bnlSKfOvJb53fEIQRjZPLhQ2rPg3jsV+0TyuXvCu an3nXBidUimWg== Received: from maru.home (host81-158-254-226.range81-158.btcentralplus.com [81.158.254.226]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by extorris.mess.org (Postfix) with ESMTPSA id 11E9A40155; Tue, 15 Sep 2026 09:32:54 +0100 (BST) From: Sean Young To: linux-media@vger.kernel.org Cc: Rik van Riel , Sean Young , bpf@vger.kernel.org Subject: [PATCH v5 00/20] media: Fix locking issues in rc core Date: Tue, 15 Sep 2026 09:32:10 +0100 Message-ID: X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Fix issues found by Sashiko and claude, and other cleanups. Changes since v4: - Split keymap locking into two commits: one for krealloc rewrite and one for the locking - Fixed meson-ir-tx: Validate carrier and duty_cycle to actually fix divide by zero - Improved commit messages - imon calls usb_driver_claim_interface() before using it - Ensure lirc_unregister() is always called with registered = false else any polling fds never get triggered Changes since v3: - serial_ir: Fix race condition where timer can be re-armed This introduced a new race condition; reworked - rc: After rc_unregister_device() timers can be re-armed Sashiko suggested a simpler implementation with timer_shutdown_sync() - Add meson-ir-tx: Validate carrier and duty_cycle - Add ir_toy: Validate the maximum tx carrier Changes since v2: - Cosmetic changes in: Add missing locking for keymap - Patch 7 to 17 are new issues found Changes since v1: - Fix issue where input device was still leaked - Add: Fix race between bpf(BPG_PROG_ATTACH) and device unregister - Add: Fix inconsistent locking of keylock Sean Young (20): media: rc: Ensure registered is cleared in error path media: rc: Ensure that rc_unregister_device() does not free input device media: rc: Fix ABBA deadlock by making locks more fine grained media: rc: Replace open coded krealloc() for keymap media: rc: Add missing locking for keymap media: rc: Fix race between bpf(BPG_PROG_ATTACH) and device unregister media: rc: mce_kbd: Fix inconsistent locking of keylock media: ene_ir: Ensure teardown is done in the correct order media: rc: Use binary search for adding or updating a scancode media: rc: imon: Bind both interfaces via usb_driver_claim_interface() media: ir_toy: Remove unused struct field media: nuvoton-cir: Remove unused struct field media: ite-cir: Removed unused struct field media: fintek-cir: Remove unused fields media: mceusb: Remove unused field media: serial_ir: Fix race condition where timer can be re-armed media: rc: After rc_unregister_device() timers can be re-armed media: rc: Validate carrier range in LIRC_SET_REC_CARRIER ioctl media: ir_toy: Validate the maximum tx carrier media: meson-ir-tx: Prevent divide by zero in meson_irtx_prepare_pulse() drivers/media/rc/ene_ir.c | 4 +- drivers/media/rc/fintek-cir.c | 13 -- drivers/media/rc/fintek-cir.h | 22 --- drivers/media/rc/imon.c | 164 ++++++++++------------- drivers/media/rc/ir-mce_kbd-decoder.c | 5 +- drivers/media/rc/ir_toy.c | 4 +- drivers/media/rc/ite-cir.c | 1 - drivers/media/rc/ite-cir.h | 1 - drivers/media/rc/lirc_dev.c | 2 + drivers/media/rc/mceusb.c | 1 - drivers/media/rc/meson-ir-tx.c | 3 + drivers/media/rc/nuvoton-cir.h | 3 - drivers/media/rc/rc-ir-raw.c | 39 +++--- drivers/media/rc/rc-loopback.c | 5 - drivers/media/rc/rc-main.c | 186 ++++++++++++++++---------- drivers/media/rc/serial_ir.c | 2 +- include/media/rc-map.h | 2 - 17 files changed, 222 insertions(+), 235 deletions(-) -- 2.55.0